14
Flue
terminal
diameter
133 mm
133 mm
-
Each 45° bend
reduces the duct
max. length by
0,5 m
0,25 m
0,25 m
Each 90° bend
reduces the duct
max. length by
1 m
0,5 m
0,5 m
Max. length
of flue duct
10 m
15 m
60 m
Flue duct terminal
Coaxial Ø 80/125 mm
Vertical two-pipe
Horizontal two-pipe
Outer
terminal
diameter
125 mm
80 mm
80 mm
… coaxial flue - air duct (concentric)
990519_0400
Concentric outlet
Figure 8
Horizontal flue terminal
Ø 80/125 mm
installation options
LAS flue duct
Ø 80/125 mm
installation options
0310_0105
L max = 10 m
0310_0106
This type of duct allows to disengage exhaust gases
and to draw combustion air both outside the building
and in case a LAS flue is fitted.
The 90° coaxial bend allows to connect the boiler to a
flue-air duct in any direction as it can rotate by 360°.
It can moreover be used as a supplementary bend and
be coupled with a coaxial duct or a 45° bend.
If the flue outlet is placed outside, the flue-air ducting
must protrude at least 18mm out of the wall to allow
alluminium weathering tile to be fitted and sealed to
avoid water leakages.
Ensure a minimum downward slope of 1 cm towards
the outside per each metre of duct length.
• A 90° bend reduces the total duct length by 1 metre.
• A 45° bend reduces the total duct length by 0.5 metre.
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